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key

[kee] / ki /


NOUN
item that unlocks
Synonyms
Antonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It may also turn on key biological signals involved in regeneration, including Wnt and Shh pathways.

From Science Daily • Jun. 7, 2026

Dornan also said that while the police have a key role to play in preventing hate crimes, it was "a wider societal issue which cannot be resolved by policing alone".

From BBC • Jun. 6, 2026

The incident came one day after police and soldiers cleared a key road linking La Paz to farming communities.

From Barron's • Jun. 6, 2026

Research done by senior market strategist Mike Webster at Investor’s Business Daily shows the most successful IPO base breakouts share two key traits: a major single-day price surge and heavy trading volume.

From The Wall Street Journal • Jun. 6, 2026

The doorway was gone and so was the metal piece that had been wedged there—like a key.

From "The Way to Rio Luna" by Zoraida Cordova




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